Compound rail.



A. C. BAKERP APPLICATION FILED OCT- 27. 191i.

4 W 37 51. m if eerie ARTHUR C. BAKER, 01? OAK PARK, ILLINOIS.

COMPOUND RAIL.

Application filed October 27, 1917.

To all whom it may concern:

Be it known that I, ARTHUR C. BAKER, a citizen of the United States ofAmerica, and a resident of Oak Park, county of Cook, and State ofIllinois, have invented certain new and useful Improvements in CompoundRails, of which the following is a specification.

This invention relates to compound. rails, and has as an object that theelements of the rail shall be arranged to exert a certain leverage uponeach other for the purpose of making a rigid, noiseless structure notallowing for any relative movement between the parts of the rail whenthe same are secured together.

Further objects of the invention are to provide improvements in compoundrails permitting of their rapid assembly, and to provide a removabletread which is normally locked with the base of the rail.

Figure 1 is a transverse section of an improved rail constructedaccording to this invention.

Fig. 2 is a sectional view illustrating the manner of assembling theparts of the rail.

Fig. 3 is a side view of the rail showing that the joints between theends of the parts of the rail do not come in the same vertical plane.

some of the purposes of this invention are to enable the renewal of thetread portion of the rail without. making necessary the un fastening ofthe rail flanges from the sleepers or bed of the railway; to dispensewith fish-plates or other small fastening devices at the ends of therails; to avoid irregular surfaces at the joints of the rails, and toprovide a rigid noiseless structure.

The drawings illustrate the invention as applied to railway rails, andshow a base 1 having the usual horizontal flanges 2 and the vertical web3. The web 3 is formed at its upper end to provide a head 4 having theflat bearing surface 5 upon which the cap or tread 6 of the rail rests.A third element, which may be of the same length as the tread and basemembers, or of less length, is shown as a lever 7 suitably formed tointerlock with the tread and base members, and also to bind or draw saidmembers into firm relationship with each other.

For the latter purpose, the member 7 is provided with a convex surface 8for cooperating as a cam with the concave surface 9 at one side of heada of the base. The mem- Specification of Letters Patent.

Patented Mar. 12, 1918.

Serial No. 198,812.

her 7 also has a longitudinal rib 10 for fitting within one of thechannels 11 in the inner sides of depending flanges 12 of the cap 6. Theflanges 12 are rolled inwardly to correspond with the surface of rib 10on the member 7, and a corresponding rib 13 formed at the side of head 1which is opposite to its concave surface.

In assembling the rail, it will be understood that the base sections arefirst secured to the sleepers of the railway bed; then the tread portion6 is hooked over the rib 13 of the head of the base member, and is swungaround the rib 13 into the position in which it is shown in Fig. 2; thenthe member 7 is inserted with the rib 10 foremost between the concavesurface 9 and the remaining flange of the tread. The lower end of themember 7 is then forced toward the web 3, drawing the tread downwardlytoward the position in which it is shown in Fig. 1. The member 7therefore acts as a lever, the ful crums of which are between the rib 10and one of the channels 11, and between the surfaces 8 and 9 of thelever and the base member respectively. The rib 13 of the base memberserves as the fulcrum around which the tread is swung. Finally theentire structure is drawn taut by' means of bolts 14 passed throughapertures 15 and 16 in the web of base 3 and the lower end of lever 7.One or both sets of the apertures 15 and 16 may be slightly elongated topermit the circular motion of lever 7 around its fulcrums when the nutsare screwed onto the bolts.

Although but one specific embodiment of this invention has been hereinshown and described, it will be understood that numerous details of theconstruction shown may be altered or omitted without departing from thespirit of this invention as defined by the following claims.

I claim:

1. A rail of the class described, comprising a base member, a treadmember, and a tensioning member, said base and tread members beingformed to afford a pivotal connection between each other at one side ofthe tread, said base and tensioning member being formed to afford apivoted connection between each other at the opposite side of the tread,and means for causing the tensioning member to draw the tread memberdovilnwardly at its pivotal connection therewit 2. A rail of the classdescribed, comprising a base member, a tread member, and a tensioningmember, all of said members being of substantially uniform length andsaid tensioning member being in the form of a lever having fulcrums onsaid base and said tread.

3. A rail of the class described, comprising a base member, a treadmember, and a tensioning member, said base and tread members beingformed to afford a pivoted connection between each other at one side ofthe tread, and said tensioning member being in the form of a leverhaving fulcrums at the opposite side of said tread and on said basemember.

Signed at Chicago this 17th day of Oct,

ARTHUR C. BAKER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

